Kinematograph.



Patented Feb. 25, I902.

Inven/Zo'r L. E. GRANICHSTAEDTEN.

KINEMATOGRAPH. (Application filed Aug. 80, 1900.)

(No Model.)

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UNITED STATES PATENT OFFICE.

LADISLAUS EMANUEL GRANIOHSTAEDTEN, OF LONDON, ENGLAND.

KINEMATOGRAPH.

SPECIFICATION forming part of Letters Patent No. 693,856, dated February 25, 1902. Application filed August 30,1900. Serial No. 28,534. (No model.)

T0 on whom it may concern:

Be it known that I, LADISLAUS EMANUEL GRANIcHsTA D'rEN,merchant,a subject of the Emperor of Austria-Hungary, residing at 28 Basinghall street, in the city of London, England, have invented certain new'and useful Improvements in Kinematographs, of which the following is a specification.

This invention has for its object to provide feed mechanism for the film of a kinematograph which shall not injure the film and shall work steadily and without backlash. The film is fed continuously by a pin-wheel driven from a shaft constantly rotated in any convenient manner. A crank on this shaft is connected by a rod to a reciprocating frame in which a plate armed with teeth is free to move. When the'frame is moving in one direction, the plate is pressed by a springagainst the film, the teeth engaging with marginal holes in it. When, however, the frame is returning, an arm oscillating with the connecting-rod moves the plate, against the spring,

out of engagement with the film.

In the drawings, Figure 1 shows a vertical section of so much of an apparatus as is necessary to illustrate my invention. Fig. 2 shows a horizontal section on the line 2 2 of Fig. 1.

a is the framework; 6, the main shaft, rotated by the pulley c and geared by a worm and worm-wheel to the spindle d,which drives by bevel-gear the two pin-wheels d d forming the continuous feed. The shaft 1) also carries the disk e, on which is a crank-pin e, connected by the forked rod f to the rockshaft 9, carried by a frame h, moving in vertical guides i and provided with horizontal guides in which move pins j, carrying springs 0 j and also a plate It, furnished with teeth Z to engage holes in the edges of the film m. By this plate the film is drawn intermittently half of the revolution of the crank-shaft b'the frame is moving downward, carrying the film with it, the plate 70 being pressed forward by springs j on the pins j; but at the bottom of the travel of the frame the shaft 9 is rocked,

owing to the movement of the connecting-rod f, and an arm 9, fast with it, presses the plate rearward against the springs j and out of engagement with the film, and so it remains during the upward movement of the frame until the highest position is reached, when, owing to the rocking of the shaft g, the springs are allowed to press the plate forward to engage another part of the film and draw it down.

I claim as my invention 1. In a kinematograph, the combination of a crank, means for continuously rotating it, a connecting-rod on the crank and operated by it, vertical guides, a frame moving vertically therein, a rook-shaft carried by the frame and operated by the connecting-rod, a plate carried by the frame, a wiper on the rock-shaft intermittently moving the plate in one direction and a spring constantly tending to move the plate in the other direction. 2. In a kinematograph, the combination of a film, means for moving it, a spring-guide plate, n, a vertically-reciprocating frame, a pin-carrying plate carried thereby, a rockshaft, connections between the rock-shaft and the frame for moving it vertically, and devices operated from the rock-shaft for moving the pin-carrying plate toward and from the film.

LADISLAUS EMANUEL GRANICHSTAEDTEN. Witnesses:

ARTHUR CAERIcK, WALTER ALBERT GREEN. 

